Quarterly report pursuant to Section 13 or 15(d)

Earnings per Share - Anti-dilutive Shares (Details)

v3.19.3
Earnings per Share - Anti-dilutive Shares (Details) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Restricted stock awards with performance only targets not yet achieved        
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Antidilutive (shares) 1,537,572 1,709,463 1,601,474 1,719,775
Stock options with performance only targets not yet achieved        
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Antidilutive (shares) 578,564 586,253 583,204 586,253
Anti-dilutive restricted stock awards, restricted stock units and performance stock units        
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Antidilutive (shares) 0 0 0 18,076
Anti-dilutive stock options        
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Antidilutive (shares) 863,063 760,766 863,063 668,596
Anti-dilutive stock options | $16.97 (usd per share)        
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Antidilutive (shares) 621,747 621,747 621,747 621,747
Exercise price (usd per share) $ 16.97 $ 16.97 $ 16.97 $ 16.97
Anti-dilutive stock options | $17.50 (usd per share)        
Antidilutive Securities Excluded from Computation of Earnings Per Share        
Antidilutive (shares) 241,316 139,019 241,316 46,849
Exercise price (usd per share) $ 17.50 $ 17.50 $ 17.50 $ 17.50